(1), correctly select the specifications of needle and thread.
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② Thread, place the bottom thread and pull it out.
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(3) Select the presser foot pressure.
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(4) When selecting linear adjustment, the hour hand must be lifted to a higher position, otherwise it may break the pointer.
Turn the pattern selection button, first select 1, which is simple to use. ※.
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⑤ Select stitch length.
It is suggested to adjust from 4 to a smaller number. The number above is the length of the pointer distance, and the unit should be millimeters. ※.
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6. Adjust the pressure of the wire clamp.
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After the above six steps, you can basically sew a straight line. If the thread type is changed, but it is still the same fabric, it can be adjusted according to the steps from ④ to ⑥. No matter what line type, it is easier to adjust the stitch length from large to small according to the figures given in the manual. Especially for thin fabrics, the stitch length should not be too small, otherwise it will easily cause knots and the machine will be stuck under the panel.
Finally, remember, remember: it is best to make all kinds of adjustments when the machine is stopped and the needle position is high, especially when choosing the linear pattern.
Give you some sewing skills and methods:
1, sewing stopped suddenly; The power indicator light is on, but the handwheel is heavy and slow.
Possible reasons (hereinafter referred to as "reasons"): sewing machine runs at low speed for a long time; Overheating of the machine may cause the motor power to turn off automatically.
Solution (hereinafter referred to as "solution"): Turn off the power supply, wait for 20 minutes, restart the safety device, and the sewing machine is ready to start working.
2, don't walk the needle
Reason: the top silk is used up; The presser foot is not put down; Shuttle spool is not in the correct position.
Solution: replace the empty shuttle core and recognize the needle again; Put down the presser foot; Press the spool to the bottom and return to the left; Put down the grommet.
The sewing machine is going to stop.
Causes: the presser foot does not match or the needle collides with the presser foot; The needle fell off and got stuck in the crochet.
Solution: replace the presser foot; Remove the needle and install a new needle.
4. The upper thread is broken
Reason: improper online mode; Knot the thread; Excessive linear tension; The needle is bent, dull or has sand holes; Machine needle size does not match; Improper needle placement; Improper matching of needle and thread; The initial sewing speed is too fast; There is no thread picker.
Solution: return to normal online; Eliminate online knots; Adjust the pressure of the wire clamp; Replace the needle; Replace the needle with the appropriate size; Place the needle correctly; Change thread or needle; Start the sewing machine at medium speed; Check online steps.
5. The bottom line has been broken
Reason: the bobbin is not completely inserted into the bobbin case; The spool is wound with wires; The shuttle core does not run smoothly in the shuttle shell; There are yarns in the shuttle shell or on the shuttle.
Solution: Carefully reload the bobbin into the bobbin case; Complete the shuttle shell outlet; Check whether the spool is damaged; Clean the shuttle housing and shuttle core.
6. Jump shot
Reason: the linear tension is too large; The needle is bent or blunted; Wrong needle size; Improper matching of needle and thread; The thread does not pass through the thread take-up rod; Insufficient plantar pressure; Improper placement of needle.
Solution: Adjust the line tension; Replace the needle; Select the appropriate needle size; Replace the needle or thread; Check the threading step; Increase the presser foot pressure; Re-insert the needle.
7. The pin does not meet the requirements
Cause: The machine wire is not completely pulled into the sensor; Wrong threading method; Shuttle shell outgoing line error; The spool cover size does not match.
Solution: the machine wire is completely pulled into the sensor; Thread correctly; Correcting the shuttle shell lead-out; Please use the spool cover that matches the size.
8, pin confusion
Reason: the needle number does not match; Online step error; The wire clamping plate is slack; Caused by strong pulling on the cloth; Insufficient or completely relaxed foot pressure; Shuttle core deformation.
Solution: choose the needle suitable for thread and cloth; Restart the machine; Tighten the clamp; Go in slowly, without pulling cloth; Tighten or reinstall the presser foot; Rewind the spool.
9. This fabric is wrinkled.
Reason: the stitches are too big for a specific fabric; Passivation of needle tip; Improper use of line tension; Insufficient plantar pressure; This cloth is too thin; The thread diameter or material difference between the top thread and the bottom thread used.
Solution: small stitches; Replace the needle; Adjust the linear tension; Increase the presser foot pressure; Use slip-on paper; The top and bottom lines have the same mass and the same diameter.
10, stranded wire
Reason: the top line and bottom line have not been pressed; Feed tooth sinking
Solution: the top thread and the bottom thread are pressed on the presser foot at the same time; Lifting feed tooth
1 1, broken needle
Reason: fine needle sewing thick material; Improper installation of machine needle; Looseness of machine needle fastening arch wire; Improper selection of presser foot; My foot is loose.
Solution: change the appropriate needle; Reinstall the needle; Tighten the needle and fix the gong wire; Choose a suitable presser foot; Reinstall the presser foot.
12, too loud, click, the machine ran over.
Cause: sundries are full of feeding teeth; There is yarn at the shuttle tip; The thread wound around the shuttle.
Solution: clean the machine; Disassemble the machine and clean the shuttle.
13, the machine does not feed.
Reason: Set the pin length to 0; The presser foot is too loose; Feed tooth position is too low; The cloth is knotted under the thread.
Solution: reset the appropriate stitch pattern and length; Adjust the presser foot pressure to "normal"; Lift the feeding teeth; Before sewing, put the double thread under the presser foot.
14, unable to thread the machine needle; The threader does not move; The thread hook can't get into the eye of the needle.
Reason: the needle is not in the highest position; Self-protection of the hour hand recognition device when the machine needle is not in position; The needle is not fully installed.
Solution: Turn the handwheel until the pointer reaches the highest position; Insert the needle completely.
15, the threader does not return to its original position, and the sewing machine stops; The threading hook is left in the eye of the needle.
Cause: The sewing machine acted unexpectedly when the thread hook was still in the eye of the needle.
Solution: Gently move the handwheel clockwise and take out the hook.